Stores a checksum value with this non‐empty cord instance, for later retrieval.

Synopsis

Declared in <absl/strings/cord.h>

void
SetExpectedChecksum(uint32_t crc);

Description

The expected checksum is a number stored out‐of‐band, alongside the data. It is preserved across copies and assignments, but any mutations to a cord will cause it to lose its expected checksum.

The expected checksum is not part of a Cord's value, and does not affect operations such as equality or hashing.

This field is intended to store a CRC32C checksum for later validation, to help support end‐to‐end checksum workflows. However, the Cord API itself does no CRC validation, and assigns no meaning to this number.

This call has no effect if this cord is empty.

Parameters

Name

Description

crc

The checksum value to store with the Cord.

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